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A 30-year-old member asked:

is it possible for you to overdose on topical fluoride?

2 doctor answers3 doctors weighed in
Dr. Theodore Davantzis
Dentistry 40 years experience
Sure: Highly unlikely unless you purposely eat the gel.. It would not be accidental. Estimated adult lethal dose is 5 to 10 grams of fluoride. Topical Fluoride strength is 1.23% by volume (0.0123). You would therefore have to ingest 400 to 800 grams of the gel, all at once (14 to 28 ounces). The teaspoon or so you put in your mouth during application will not harm you.
Dr. Paul Grin
Dr. Paul Grin answered
Pain Management 36 years experience
Of course: Overdose symptoms are nausea, vomiting, stomach pain, diarrhea, drooling, numbness or tingling. If concerned, seek emergency medical attention.

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A 36-year-old member asked:

Can you overdose on topical fluoride? If yes, what happens?

2 doctor answers3 doctors weighed in
Dr. Leonard Pizzolatto
General Practice 41 years experience
Patient support: Usually the affects of Fluoride overdose is being sick to your stomach. Vomiting and or diarrhea. Supporting the patient with fluids and meds for nausea.

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Last updated Apr 1, 2015
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